The rules of life is written by RICHARD TEMPLAR.  I would like to share The Rule 36 " Know when to let go - when to walk away" . 

"If a relationship is coming to its end, instead of playing out long and complicated - and potentially hurtful- END GAMES, learn the ART of walking away. If it's dead, leave it. This isn't a rule that should be in the relationship section and nothing to do with them. IF it's dead, don't go digging it up every five minutes to check if there is pulse. IT'S DEAD, WALK AWAY. "

This reminded me  that I should do something rather than let the situation control me. In fact, I am the one who should control the situation to overcome the problem.